Pentax K-7 vs Sony DSC-S2100 Specifications

APS-C 369.7mm²
14.6 megapixels
ISO 100 - 3200

Go in depth with our full Pentax K-7 Review.
See real-world photos taken with the K-7.

1/2.3 inch 28.1mm²
12.1 megapixels
35.00mm - 105.00mm (35mm eq.)

Go in depth with our full Sony DSC-S2100 Review.

Detailed specifications
Pentax K-7
Sony Cyber-shot DSC-S2100

Links
Prices:
Manufacturer URL:	Manufacturer website	Manufacturer website
Predecessor:	Pentax K20D K20D vs K-7
Successor:	Pentax K-5 K-7 vs K-5
General
Model Number:	K-7	DSC-S2100
Alternate Model Number(s):
Camera Format:	Pro SLR	Compact
Currently Manufactured:	No	No
Retail Price:	$1299.95	$119.00
Street Price:		$79.88
Date Available:	2009-07-15	2010-01-15
Tripod Mount:	Yes	Yes
Weight:	26.7 oz (758 g) includes batteries	6.5 oz (184 g) includes batteries
Size:	5.1 x 3.8 x 2.9 in. (130 x 97 x 74 mm)	3.8 x 2.4 x 1.1 in. (98 x 61 x 27 mm)
Waterproof:	No	No
Waterproof Depth:	n/a	n/a

Image Sensor
Sensor Type:	CMOS	CCD
Sensor Manufacturer:		Sony Super HAD
Effective Megapixels:	14.6	12.1
Sensor Format:	APS-C	1/2.3 inch
Sensor size:	369.72mm² (23.7mm x 15.6mm)	28.0735mm² (6.17mm x 4.55mm)
Approximate Pixel Pitch:	5.07 microns	1.54 microns
Focal Length Multiplier:	1.5x	n/a
Aspect Ratio:	3:2	4:3, 16:9
Color Filter Type:	RGBG	RGBG
Anti Aliasing Filter:	Fixed
Self-Cleaning:	Yes	No
Sensor shift image stabilization:	Yes	No
On-Sensor Phase Detect:	No	No
DxO Sensor Score:	61
DxO Color Depth Score (bits):	22.6
DxO Dynamic Range Score (evs):	10.6
DxO Maximum Effective ISO Score (iso):	536
Image Capture
Image Resolution:	4672 x 3104 (14.5 MP, Other), 3936 x 2624 (10.3 MP, 3:2), 3072 x 2048 (6.3 MP, 3:2), 1728 x 1152 (2.0 MP, 3:2)	4000 x 3000 (12.0 MP, 4:3), 4000 x 2248 (9.0 MP, 16:9), 3264 x 2448 (8.0 MP, 4:3), 2592 x 1944 (5.0 MP, 4:3), 1920 x 1080 (2.1 MP, 16:9), 640 x 480 (0.3 MP, 4:3)
Image File Format:	JPEG (EXIF 2.21), RAW (.PEF, .DNG)	JPEG
Continuous-mode frames/second:	5.2	n/a
Video Capture
Can take movies:	Yes	Yes
Movie Resolution:	1280x720 (30) 1536x1024 (30) 640x416 (30)	640x480 (30) 320x240 (30)
Movie File Format:	AVI (Motion JPEG)	AVI (Motion JPEG)
Composite Video Out:	Yes	No
NTSC/PAL Switchable Video:	Yes	n/a
Video Usable as Viewfinder:	No	n/a
HD Video Out:	Yes	No
HD Video Connection:	HDMI

Lens & Optics
Lens Mount:	Pentax K (KA/KAF/KAF2)	n/a
Lens:	n/a	Sony lens; 6 elements in 5 groups, including 2 asph.
Focal Length (35mm equivalent):		35 - 105mm
Focal Length (actual):		6.2 - 18.6mm
Zoom Ratio:		3.00x
Aperture Range:		f/3.1/5.6 (W) - f/5.6/? (T) 2-steps
Integrated ND Filter:	No	No
Normal Focus Range:		5 cm to Infinity 2.0 in to Infinity
Macro Focus Range:		5 cm to Infinity 2.0 in to Infinity
Filter Thread:	n/a	n/a
Thread Type:	n/a	n/a
Optical Image Stabilization:	No	No
Digital Zoom:	No	Yes
Digital Zoom Values:	n/a	2x Precision, up to 18x Smart Zoom
Auto Focus
Auto Focus:	Yes	Yes
Auto Focus Type:	11-point TTL phase-matching (SAFOX VIII)	Contrast Detection; 9-area, Center-weighted
Auto Focus Assist Light?	Yes	No
Manual Focus:	Yes	No
Viewfinder
Viewfinder:	Optical / LCD	LCD
Viewfinder Type:	SLR type; eye-level pentaprism, 100% coverage, 0.92x mag., -2.5 to 1.5 diopter
Focus Peaking:	No	No
EVF Resolution:	n/a	n/a
Viewfinder Magnification (35mm equivalent):	0.61x
Viewfinder Magnification (nominal/claimed):	0.92x
Display
Eye-level Viewfinder:	Yes	No
Rear Display:	Yes	Yes
Rear Display Size (inches):	3.0	3.0
Rear Display Resolution:	921,000 dots	230,400 dots
Touchscreen:	No	No
Articulating Screen:	No	No
Tilt Swivel Screen:	No	No
Selfie Screen:	No	No
Max Playback Zoom:	32.0x	8.0x
Top Deck Display:	Yes

Exposure
Maximum ISO (native):	3200
Minimum ISO (native):	100
ISO Settings:	Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded)	Auto (100-800), 100, 200, 400, 1600, 3200
Auto ISO Mode:	Yes	Yes
White Balance Settings:	Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (W, D, N), Flash, Color Temperature	Auto, Daylight, Cloudy, Fluorescent 1/2/3, Incandescent, Flash
Shutter Speed Range:	1/8000 - 30 sec	1/2000 - 1 sec
Bulb Mode:	Yes	No
Exposure Compensation:	+/- 5.0EV in 0.3EV steps	+/- 2.0EV in 0.3EV steps
Metering Modes:	TTL open-aperture: 77-segment, Center-weighted, Spot	Multi-pattern, Center-weighted, Spot
Program Auto Exposure:	Yes	Yes
Aperture Priority:	Yes	No
Shutter Priority:	Yes	No
Full Manual Exposure:	Yes	No
Creative Exposure Modes:	Sensitivity Priority, Shutter and Aperture Priority, USER, Movie	Easy, Smile, Softsnap, Landscape, Twilight portrait, High Sensitivity, Twilight, Snow, Beach, Gourmet
Self Timer:	2 or 12 seconds	10 or 2 seconds
Time Lapse (intervalometer):	Yes
High Resolution Composite:	No	No
Flash
Built-in Flash:	Yes	Yes
Flash Modes:	On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync, Wireless	Auto, On, Slow Synch, Off
Flash Guide Number (ISO 100):	13.0 m / 42.7 ft.	n/a
Flash Range Description:	Depends on lens	ISO Auto: 0.5m - 3.3m(W), 0.5m - 1.8m(T)
Max Flash Sync:	1/180
Flash Exposure Compensation:	-2 to +1 EV in 0.5EV steps
External Flash Connection:	Hot Shoe, PC-Sync Socket	n/a
Built-In Wireless Flash Control:	Full TTL exposure
Image Storage
Usable Memory Types:	SD / SDHC	MS Duo / MS PRO Duo / SD / SDHC
UHS Support:
Other Memory:
Dual Card Slots:	No	No
RAW Capture Support:	Yes	No
Uncompressed Format:	RAW (.PEF, .DNG)
Movie File Format:	AVI (Motion JPEG)	AVI (Motion JPEG)
Included Memory:	No memory included	6.0 MB
Included Memory Type:		Internal
Connectivity
Built-In Wi-Fi:	No	No
NFC:	No	No
Bluetooth:	No	No
Built-In GPS:	No	No
Microphone Jack:	No	No
Headphone Jack:	No	No
External Connections:	USB 2.0 High Speed	USB 2.0 High Speed
PictBridge Compliant:	No	Yes
DPOF Compliant:	Yes	Yes
Remote Control:	Yes	No
Remote Control Type:	Wired or IR
Connections (extended):	DC input, wired remote, external stereo mic jack

Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):	<0.3
Cycle time for RAW shooting in single shot mode (seconds per frame):	<0.3
Buffer size for RAW shooting in single shot mode (frames):	13
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):
Camera penalizes early shutter press?	No
JPEG shooting speed in burst mode (fps, max resolution):	5.2
Buffer size for JPEG shooting in burst mode (frames, max resolution):	20
RAW shooting speed in burst mode (fps):
Buffer size for RAW shooting in burst mode (frames):
RAW+JPEG shooting speed in burst mode (fps):
Buffer Size for RAW+JPEG shooting in burst mode (frames):
Shutter lag (full AF, wide/mid):	0.09 seconds
Shutter lag (full AF, tele):
Shutter lag (full AF, live view - DSLR):
Shutter lag (prefocused, live view - DSLR):
Shutter Lag (manual focus):	0.075 seconds
Shutter lag (full AF, with flash):	0.15 seconds
Shutter Lag (prefocused):	0.074 seconds
Shutter Lag (notes):	Live View Phase-Detect Full AF: 1.2 seconds Contrast-Detect Full AF: 2.3 seconds Prefocused: 0.405 second
Startup Time:	0.6 seconds
Play -> Record Time:	0.1 seconds
Flash cycle time, full power:	3.7 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):		170 shots (Alkaline AA)
Battery Life, Still (CIPA Rating OVF/EVF):	740 shots
Battery Life, Video:
Battery Form Factor:	Proprietary D-LI90	2 x AA
Usable Battery Types:	Lithium-ion rechargeable	Alkaline, Lithium disposables; NiMH rechargeables
Batteries Included:	1 x Proprietary D-LI90 Lithium-ion rechargeable	2 x AA Alkaline disposables
Battery Charger Included (dedicated charger or AC/USB adapter):	Yes	Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software:	CD-ROM S-SW74/75	Sony CD-ROM (Picture Motion Browser (PC), Picture Motion Browser Portable (PC/MAC), Music Transfer (PC/MAC)
OS Compatibility:	Windows XP/Vista, MacOS 10.2 or later	Windows XP/Vista/7, Mac OS X v10.3+
Miscellaneous
Notes & Features:	Sensor-shift image stabilization, new 77-segment metering system, Distortion and Lateral Chromatic Aberrations correction, High Dynamic Range (HDR) image capture mode, HD Movie capture (1280x720, 1536x1024, 640x416 all at 30 frames per second), HDMI output, magnesium alloy body.	Available in Silver, Black and Orange.